private void Subscribe(BasicSubscription subscription)
{
JsonObject message = new JsonObject();
message[ProtocolConstants.OP_FIELD] = ProtocolOpConstants.OP_SUBSCRIBE;
message[ProtocolConstants.ID_FIELD] = subscription.getSubscriptionId();
if (subscription.getContentMatcher() != null)
{
message[ProtocolConstants.MATCHER_FIELD] = subscription.getContentMatcher();
}
if (subscription.getDurable() != null)
{
message[ProtocolConstants.DURABLE_FIELD] = subscription.getDurable();
}
if (subscription.getProperties() != null)
{
foreach (String key in subscription.getProperties().Keys)
{
message[key] = subscription.getProperties() [key];
}
}
Queue(message.ToString());
}
private void handleMessage(JsonObject envelope)
{
lock (processLock)
{
long seqNum = 0;
long reqId = 0;
long msgId = 0;
long deliveryCount = 0;
String replyTo = null;
String to = (String)envelope[ProtocolConstants.TO_FIELD];
JsonObject body = (JsonObject)envelope[ProtocolConstants.BODY_FIELD];
object fieldObj;
if (envelope.TryGetValue(ProtocolConstants.SEQ_NUM_FIELD, out fieldObj))
{
seqNum = Convert.ToInt64(fieldObj);
}
if (envelope.TryGetValue(ProtocolConstants.REQ_ID_FIELD, out fieldObj))
{
reqId = Convert.ToInt64(fieldObj);
}
if (envelope.TryGetValue(ProtocolConstants.STORE_MSG_ID_FIELD, out fieldObj))
{
msgId = Convert.ToInt64(fieldObj);
}
if (envelope.TryGetValue(ProtocolConstants.DELIVERY_COUNT_FIELD, out fieldObj))
{
deliveryCount = Convert.ToInt64(fieldObj);
}
if (envelope.TryGetValue(ProtocolConstants.REPLY_TO_FIELD, out fieldObj))
{
replyTo = Convert.ToString(fieldObj);
}
// The message will be processed if there is no sequence number or
// if the sequence number is greater than the last received sequence number.
BasicSubscription subscription = null;
bool exists = subscriptions.TryGetValue(to, out subscription);
if (exists && subscription != null)
{
if (seqNum == 0 || seqNum > subscription.LastSeqNum)
{
IMessage message = new JSONMessage(body);
((JSONMessage)message).SeqNum = seqNum;
((JSONMessage)message).SubId = to;
((JSONMessage)message).ReplyTo = replyTo;
((JSONMessage)message).ReqId = reqId;
((JSONMessage)message).StoreMessageId = msgId;
((JSONMessage)message).DeliveryCount = deliveryCount;
try
{
subscription.getListener().OnMessages(new IMessage[] { message });
}
catch (Exception)
{
// catch and discard exceptions thrown by the listener
}
// track the last received sequence number
if (subscription.AutoAck && seqNum != 0)
{
subscription.LastSeqNum = seqNum;
}
}
// auto-acknowledge the message
if (subscription.AutoAck && seqNum != 0)
{
acknowledge(seqNum, subscription.Id);
}
}
}
}
private void handleMessages(JsonArray array)
{
lock (processLock)
{
ArrayList messages = new ArrayList(array.Count);
BasicSubscription currentSubscription = null;
long seqNum = 0;
long lastSeqNum = 0;
int max = array.Count;
for (int i = 0; i < max; i++)
{
JsonObject envelope = (JsonObject)array[i];
string to = (String)envelope[ProtocolConstants.TO_FIELD];
JsonObject message = (JsonObject)envelope[ProtocolConstants.BODY_FIELD];
object seqNumObj;
if (envelope.TryGetValue(ProtocolConstants.SEQ_NUM_FIELD, out seqNumObj))
{
seqNum = Convert.ToInt64(seqNumObj);
}
// The message will be processed if qos is not enabled, there is no
// sequence number or if the sequence number is greater than the last
// received sequence number.
if (!qos || seqNum == 0 || seqNum > lastSequenceNumber)
{
BasicSubscription subscription = null;
bool exists = subscriptions.TryGetValue(to, out subscription);
if (exists && subscription != null)
{
if (currentSubscription != null && currentSubscription != subscription)
{
try
{
IMessage[] arr = new IMessage[messages.Count];
for (int j = 0; j < messages.Count; j++)
{
arr[j] = (JSONMessage)messages[j];
}
currentSubscription.getListener().OnMessages(arr);
}
catch (Exception)
{
// catch and discard exceptions thrown by the listener
}
messages.Clear();
}
currentSubscription = subscription;
messages.Add(new JSONMessage(message));
}
// track the last received sequence number only if qos is enabled
if (qos && seqNum > 0)
{
lastSequenceNumber = seqNum;
}
}
if (seqNum > 0)
{
lastSeqNum = seqNum;
}
}
if (currentSubscription != null && messages.Count > 0)
{
try
{
IMessage[] arr = new IMessage[messages.Count];
for (int i = 0; i < messages.Count; i++)
{
arr[i] = (JSONMessage)messages[i];
}
currentSubscription.getListener().OnMessages(arr);
}
catch (Exception)
{
// catch and discard exceptions thrown by the listener
// Console.WriteLine(e.Message);
}
messages.Clear();
}
// Send an acknowledgment for the last sequence number in the array.
// The server will acknowledge all messages less than or equal to
// this sequence number.
if (lastSeqNum > 0)
{
ack(lastSeqNum);
}
}
}
